GAL20V8QS-20LNC

Programmable Logic Device Pld Overview

The GAL20V8QS-20LNC is a Complex Programmable Logic Device (CPLD) belonging to the GAL20V8 family, originally manufactured by National Semiconductor and later integrated into Texas Instruments' portfolio following their acquisition. This component utilizes CMOS technology and features a PAL-type architecture with 20 input lines and 8 output lines. The device operates within a commercial temperature range and offers a typical propagation delay of 20 nanoseconds. It is housed in a 28-pin Plastic Dual In-Line Package (PDIP), providing a robust solution for general-purpose logic applications requiring reprogrammability.

Programmable Logic Device Pld Feature Summary

• CMOS technology ensuring low power consumption
• PAL-type architecture with 20 inputs and 8 outputs
• 20 ns maximum propagation delay
• 28-pin PDIP package

Programmable Logic Device Pld Applications

• General-purpose digital logic replacement
• Address decoding circuits
• Simple state machine implementation

Programmable Logic Device Pld Part Context

The GAL20V8 series represents a generation of Electrically Erasable Programmable Logic Devices (EPLDs) that succeeded earlier PROMs and PLDs. National Semiconductor was a primary producer before Texas Instruments acquired the semiconductor division. The 'QS' suffix typically denotes a specific speed grade or testing standard, while 'LNC' indicates the lead-free PDIP package variant compliant with environmental regulations.

Programmable Logic Device Pld Replacement Considerations

Direct pin-to-pin replacements include the Lattice GAL20V8B-20PCN or the Atmel GAL20V8-20PU. When substituting, verify that the alternative device supports the same voltage supply requirements and matches the 20ns speed grade. Ensure the replacement package is compatible with existing PCB footprints.